短語詞組短語Protection Dead Zone 保護(hù)死區(qū)main protection dead zone 主保護(hù)死區(qū)Water environment protection functional zone 水環(huán)境保護(hù)功能區(qū)sanitary protection zone 衛(wèi)生防護(hù)區(qū);衛(wèi)生防護(hù)帶;衛(wèi)生保護(hù)區(qū)ecosystem function protection zone 生態(tài)功能保護(hù)區(qū)environmental protection zone 環(huán)境防護(hù)距離wellhead protection zone 水源地保護(hù)區(qū)level of protection zone 保護(hù)區(qū)級別sanitary y protection zone 衛(wèi)生防護(hù)區(qū) 返回 protection zone